You're quoting a troll as reference for "anyone with a clue". Further, you're referencing that the systemd Debian maintainer quit on the harassment in the systemd discussion because he wanted systemd _in Debian_.
Linus called out on some behaviour. That is not him saying that people should stop developing. It's him saying stop this behaviour.
As shown in the LKML and Debian debates, the systemd infestation
was firmly opposed by nearly everyone outside the 'vested interest'
RedHat filter bubble. And still is.
Some high profile names would be Eric S. Raymond
or Patrick Volkerding (creator of Slackware).
Literally everyone with a clue in the matter seems to hate systemd with passion[1].
A long-term Debian Maintainer quit over the issue[2].
Linus himself (as you quoted) seems more than a little annoyed by systemd and its developer.
And yet somehow systemd made its way into all major distros...
[1] https://lkml.org/lkml/2014/8/12/459
[2] http://err.no/personal/blog/2014/Nov/16